/Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Populates the passed array with polygon IDs connected to this edge
template<typename Alloc> void GetEdgeConnectedPolygons ( const [FEdgeID](API\Runtime\MeshDescription\FEdgeID) EdgeID, [TArray](API\Runtime\Core\Containers\TArray)< [FPolygonID](API\Runtime\MeshDescription\FPolygonID), Alloc > & OutPolygonIDs ) const